How can using PoE to power cameras help keep them running during a power outage?

• A.The PoE standard requires connected devices to include backup batteries, to allow for network dropouts
• B.PoE cameras are centrally powered from the Ethernet switches which are backed up by uninterrupted power supply (UPS)
• C.Since PoE cameras are centrally powered by the server, you will only need to add backup power to the server to keep the system running
• D.PoE cameras use less cabling, allowing backup power supplies to last longer

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The term f-stop, or f-number,

• A.Measures the lens' capability to collect light.
• B.Relates the focal length of the lens to the zoom factor.
• C.Measures the lens' capability to focus on objects at short distance.
• D.Is the end position of the focus motor in an autofocus system.

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IP51 and IP52 means that the camera

• A.Can be placed in or outdoors.
• B.Is designed for tough environments.
• C.Is vandal resistant.
• D.Is resistant to dust and dripping water.

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How does the AXIS Design Tool allow users to estimate the effects of scene complexity and motion on bandwidth and storage usage?

• A.Users can view model scenario videos and select the scenario that best matches their scene
• B.AXIS Design Tool uses a statistical model based on selected camera model
• C.Users can upload recorded surveillance video to allow AXIS Design Tool to make estimates
• D.AXIS Design Tool requires users to manually enter their own estimated bit rate for each camera

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If a camera lens is broken and you need to replace it, you should always disconnect the power and network cables because there is a risk that

• A.The camera electronics will short circuit.
• B.The shutter will break.
• C.The sensor will attract dust.
• D.The lens electronics will short circuit.

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